The European aviation safety regulators have now said that all carriers that are flying large Airbus aircraft need to replace their pilot speed probes made by Thales with those made by Goodrich. This choice comes following the investigations of flight 447, which plunged into the Atlantic shortly after starting a flight from Rio to Paris back on June 1.

The findings of the investigation on flight 447 suggest that the faulty Thales sensors are very likely to have contributed to the accident that killed all 228 people that were on the plane. This new proposal says that any airline that has A330’s and A340’s that are currently fitted with Thales pitot probes must be fitted with at least two Goodrich probes. This allows for a maximum of one Thales to remain fitted to the aircraft.

The new proposal also seeks to ban all uses of any earlier version of the same model Thales speed probes that was installed on Air France Flight 447. This order is set to affect about 200 planes from a global fleet of around 1,000 long-haul Airbus jets. Almost 70 percent of these airlines already use only Goodrich speed probes.

The crash investigators say that they suspect that the Thales probes on Flight 447 iced over. This caused them to send faulty speed readings to the aircraft’s computer when it hit the turbulence thunderstorm.

Many airlines have already started to replace these speed monitors with next generation Thales probes. However, this month an Airbus A320 jet that was equipped with one of these new model Thales probes also malfunctioned, which led to a brief loss of speed readings and forced the pilot to fly manually.